CVE-2026-21231 is a vulnerability tracked across 2 threat clusters and 2 intelligence report mentions on ThreatCluster. First observed February 10, 2026; most recent activity February 10, 2026.
On February 10, 2026, Microsoft released a security update addressing 59 vulnerabilities, including six zero-day flaws that were actively exploited prior to the patch. The vulnerabilities affect various Microsoft…
On February 10, 2026, Adobe and Microsoft released security patches addressing numerous vulnerabilities, including 36 CVEs published on the same day. Notably, three CVEs (CVE-2026-21510, CVE-2026-21514, and…